Block Diagram Audio - Philips LC4.41E Service Manual

Block Diagrams, Test Point Overviews, and Waveforms

Block Diagram Audio

AUDIO
B1 TUNER & IF
1152
UV1318S
F158
2156
1156
4
11 IF-TER 1
RF IN IFOUT
2
TUNER 5
3
7151
4 5
SEL_IF_SDM
B2
B15A SCART ANALOG-IO B14 DIGITAL IO
7F03
1G01-1 74HC4052D
1
6 AV1_Audio_INL 1
MULTI
PLEXER
2 AV1_Audio_INR 12
21
SIDE_AudioINL Analog_AudioINL
4 3
EXT 1
SCART 1
SIDE_AudioINR 11 13 Analog_AudioINR
1G02-1
1
6 AV2_Audio_INL 2
AV2_Audio_INR
2 15
21
10 9 Analog_AudioSEL1
EXT 2
SCART 2 Analog_AudioSEL2
1G02-2
HD_AudioINL HD_AudioINL
AUDIO
L/R IN
HD_AudioINR HD_AudioINR
1F01
DVI_D_AudioINL DVI_D_AudioINL
AUDIO
L/R IN
DVI_D_AudioINR DVI_D_AudioINR
D SIDE AV B17 SIDE CONNECTORS
1K04
1002 1M36
L 6 6 FRONT_L_IN
AUDIO
L/R IN
R 8 8 FRONT_R_IN
B14 DIGITAL IO B12 HDMI
1F02
7D03 7D04
TDA9975 UDA1334ATS
HDMI1
HDMI_A HDMI DAC
HDMI_AudioINL
A5 1 14
1F03
A7 3
10-BIT
HDMI_AudioINR
B7 2 16
VIDEO
CONVERTER
HDMI_B
HDMI2
CONTROL
E B17
CONTROL BOARD SIDE CONNECTORS
1703
Channel+
1704
Channel-
1705
Menu
1701
Volume+
1702
Volume-
1706 2 2
Power
J IR/LED/LIGHT-SENSOR
1040
3040
3 3
RC
+5v2-STBY
IR
SENSOR
6070
1 1
LIGHT-SENSOR
2 2
LIGHT
SENSOR
3051 6051
7051
5 5
+5V2-STBY
LED RED
6060 LED1 4 4
3061
7062 7052
LED GREEN
LED2 6 6
LC4.41E AA
B2 HERCULES
7217
TDA15021H
29 AM
SIF1
4211
QSS Mixer 61
AUDOUTLSR
AM Demod.
QSS/FM
SIF2 30
AD Conv.
33 4212
60
AUDOUTLSL
Std Stereo
AUDIO
Decoder
CONTROL
Vol/Treb/
B4 AUDIO DELAY LINE
Bass
(LIPSYNC)
Features
DACs
7503
M74HC590
103 I2SCLK
COUNTER
34
7502
CY62256LL
35
I2S
Processor
B7
I2SDO1
105
49
AUDIO
50
SELECT
ADC/DAC
106 I2SDI1
56
57
62
63
36
53
37
54
B2
HERCULES
HERCULES
B3
SYNC INTERFACE
3431
+3v3STBY
+3V3STBY
7430
6430
+5VSW
10
3432
RES
11
6. 23
B5 AUDIO PROCESSING B16 C2 C1 AUDIO: AMPLIFIER
7D10-02
1 1
AUDIO-R ADAC1
7D10-3
3 3 ADAC2
AUDIO-L
FEEDBACK
7501
M74HC590
COUNTER
MUTE
RAM
32kx8
SOUND-ENABLE 8 8 SOUND-ENABLE
MUTE
7505
7601
74HC573 INV-MUTE
TS482ID
LATCH
2 1
B17 SIDE
6 7 CONNECTORS
7506
74HC573
OUT_MUTE
MUTE
LATCH
7602
74HC08PW
HP_DET_R_DC_1 HP_DET_R_DC_1
2
3 &
1 SOUND_ENABLE
B2
6 &
5
POWER_DOWN
9 B16
OUT_MUTE
8 &
10 EXT_MUTE
B2
B15 SCART ANALOGUE IO
SC2_L_MON_OUT
SC2_R_MON_OUT
SC2_L
OUT_MUTE
MUTE
SC2_R
SC1_L_RF_OUT
SC1_R_RF_OUT
SC1_L
MUTE
SC1_R
B6 DC-DC CONVERTER
B1
4204
4205
PAN_VCC
5756 5757
7754
+12VSW
3758 LVDS_VCC
5700
7755
B15A
+3V3SW
7758
B15A
B8
+3V3STBY
3759
B5
7756
B5
B6 B2
B15B
B15A
B15B
B7
B7
1202
24M576
C2 AUDIO:
+12_20V
CONNECTORS
7D14÷7D16
7D18
1M03
1
LEFT-SPEAKER
7D18
3
LEFT
SPEAKER
7D10-01 7D11
-12_20V 1M02
7
FEEDBACK-LR PROT-AUDIOSUPPLY
TO
5M09
6
PDP
+12_20V
5M12 SUPPLY
5
7D10-04
3
FEEDBACK-RL
5M09
2
+12_20V
-12_20V
7D19÷7D21 5M11 1
7D23
1M04
RIGHT-SPEAKER 1
7D23
3
RIGHT
SPEAKER
-12_20V
7D25
7D26
U-VOLT-DETECT
CONTROL CONTROL
D SIDE AV
HP_LOUT 10 10 SOUND_L-HEADPHONE-OUT 7
HP_ROUT 12 12 SOUND_R-HEADPHONE-OUT
1
2
DETECT
11 11
1G02-1 1
SC2_L_MON_OUT 3
SC2_R_MON_OUT 1
21
EXT 2
SCART 2
1
1G01-1
SC1_L_RF_OUT 3
SC1_R_RF_OUT 1
21
EXT 1
SCART 1
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